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GPU Comparison
AMD Radeon RX 580 vs AMD Radeon HD 6450
AMD Radeon RX 580 vs AMD Radeon HD 6450
VS
AMD Radeon RX 580
AMD Radeon HD 6450
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 580 's Advantages
Released 6 years late
Boost Clock1340MHz
Larger VRAM bandwidth (256.0GB/s vs 25.60GB/s)
2144 additional rendering cores
AMD Radeon HD 6450 's Advantages
Lower TDP (18W vs 185W)
Score
Benchmark
FP32 (float)
Radeon RX 580
+2987%
6.175 TFLOPS
Radeon HD 6450
0.2 TFLOPS
Radeon RX 580
VS
Radeon HD 6450
Graphics Card
Apr 2017
Release Date
Apr 2011
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1257 MHz
Base Clock
-
1340 MHz
Boost Clock
-
2000 MHz
Memory Clock
800 MHz
Memory
8GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
256.0GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
36
Compute Units
2
2304
Shading Units
160
144
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
2 MB
L2 Cache
128 KB
Theoretical Performance
42.88 GPixel/s
Pixel Rate
2.500 GPixel/s
193.0 GTexel/s
Texture Rate
5.000 GTexel/s
6.175 TFLOPS
FP16 (half)
-
6.175 TFLOPS
FP32 (float)
200.0 GFLOPS
385.9 GFLOPS
FP64 (double)
-
Graphics Processor
Polaris 20
GPU Name
Caicos
Polaris 20 XTX (215-0910038)
GPU Variant
Caicos PRO
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
5.7 billion
Transistors
0.37 billion
232 mm²
Die Size
67 mm²
Board Design
185W
TDP
18W
450 W
Suggested PSU
200 W
1x HDMI 2.0b 3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
1x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.4
Shader Model
5.0
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